Nested kit and cartridge device

Abstract

A nested kit and cartridge device (10) for storing medical device components includes a cartridge (12) and at least one nested kit (14). The cartridge (12) includes four side surfaces (16, 17) and a plurality of guide ribs (22) extending vertically along the side surfaces (16, 17), wherein the plurality of guide ribs (22) point inward and include a friction surface (25) extending vertically thereon. The at least one nested kit (14) includes a top surface (35), a bottom surface (36), a plurality of containers (24) for storing a plurality of medical device components therein, and a plurality of deflectable clips (30) positioned on edges (28, 29) of the at least one nested kit (14). A position of each clip of the plurality of deflectable clips (30) of the at least one nested kit (14) corresponds to a position of a corresponding one of the plurality of guide ribs (22) of the cartridge (12), and a portion of each deflectable clip of the plurality of deflectable clips (30) is configured to contact a respective friction surface (25) of the corresponding one of the plurality of guide ribs (22) to cause each deflectable clip of the plurality of deflectable clips (30) to deflect inwardly laterally to align and secure the at least one nested kit (14) within the cartridge (12).

Description

[0001] Cross-references to related applications

[0002] This application claims priority to European Priority Application No. EP 21305100.6, filed on January 26, 2021, entitled “A Nest for the Packaging of Plunger Stoppers with Clips Ensuring a Reliable Alignment of Several Nests in a Tub”, the entire disclosure of which is incorporated herein by reference.

[0003] background

[0004] The technical field of this disclosure

[0005] This disclosure generally relates to nesting and cassette arrangements for packaging plunger stops used in medical devices (e.g., syringes). More specifically, this disclosure relates to a nesting and cassette arrangement that utilizes at least one nesting to package a plunger stop, each nesting having a deflectable clamping element to ensure reliable alignment of multiple stacked nestings within a cassette.

[0006] Description of related technologies

[0007] As is known in the art, transfer or storage devices (e.g., syringes) for delivering or storing pharmaceuticals, drugs, or vaccines utilize a plunger stop that contacts the inner surface of a syringe barrel, which is typically tubular, to draw material into the device (or expel material from the device) via a plunger rod.

[0008] Currently, many such devices use automated filling machines for filling and assembly. These machines not only improve productivity and accuracy, but they also provide a substantially sterile and sterile filling environment. The various components of these devices (e.g., plunger stops, syringe barrels, etc.) are housed separately within the filling machine to enable at least a degree of automated assembly.

[0009] Typically, multiple plunger stops are housed in a bag or nest (which is also housed in a bag) for access by the filling machine during assembly. Alternatively, the syringe cartridge is typically packaged in a nest having multiple "chimneys" formed therein to hold the cartridge, each nest configured to be held within a tub when introduced into the filling machine.

[0010] While current inserts for syringe barrels are specifically designed for use with cassettes, current inserts designed to hold plunger stops are not configured for use with a specific cassette profile, nor are they securely held within the syringe barrel cassette. In some automated filling machines, the lack of a cassette for holding the plunger stop insert is not a problem. However, in other state-of-the-art filling devices (e.g., the Vanrx SA25 robotic aseptic filling work unit from Vanrx PharmasSystems Inc.), only components packaged in both inserts and cassettes can be processed. Furthermore, as mentioned above, currently available inserts for plunger stops are not designed to remain within existing cassette designs. Therefore, attempting to use existing inserts and cassettes together for plunger stops can result in unreliable positioning and unwanted movement of the insert within the cassette, causing problems for robotic handling of inserts within filling devices. Documents US2019299217A1, US9433944B2, EP3454064A1, and WO2012143533A1 relate to the packaging of containers. Summary of the Invention

[0011] In view of the foregoing, there is a need for a nesting component specifically designed for plunger stops, and a housing specifically designed to accommodate multiple such nesting components. Furthermore, both the nesting component and the housing are required to be configured to ensure reliable alignment of the multiple nesting components within each housing.

[0012] Embodiments of this disclosure relate to a nesting member and housing assembly for storing medical device components. The nesting member and housing assembly includes a housing having four side surfaces and a plurality of guide ribs extending vertically along the side surfaces, wherein the guide ribs are inwardly pointing and include a friction surface extending vertically thereon. The nesting member and housing assembly also includes at least one nesting member having a top surface, a bottom surface, a plurality of containers, and a plurality of deflectable clamping members for storing a plurality of medical device components therein, the plurality of deflectable clamping members being positioned on the side surfaces of the at least one nesting member. The position of each of the plurality of deflectable clamping members of the at least one nesting member corresponds to the position of a corresponding guide rib of the housing. Furthermore, a portion of each of the plurality of deflectable clamping members is configured to contact a corresponding friction surface of a corresponding guide rib among the plurality of guide ribs, so that each of the plurality of deflectable clamping members is deflected laterally inward to align and secure the at least one nested member within the housing.

[0013] In some embodiments, each of the plurality of deflectable clamps includes a head portion located at a distal end of the deflectable clamp, wherein the head portion is configured to contact the friction surface of a corresponding one of the plurality of guide ribs when the at least one nested member is positioned within the housing.

[0014] In some embodiments, the proximal end of each of the plurality of deflectable clamps is coupled to the at least one nesting member so that each of the plurality of deflectable clamps can deflect inward about the proximal end of the deflectable clamp.

[0015] In some embodiments, each of the plurality of deflectable clamps is positioned within a notch portion of the at least one nesting member.

[0016] In some embodiments, the box includes a top portion and a bottom portion, the bottom portion being designed to be smaller than the top portion.

[0017] In some embodiments, the top portion is defined by a bottom ledge surface and a top cover flange, with the plurality of guide ribs extending between the bottom ledge surface and the top cover flange.

[0018] In some embodiments, the friction surface of each of the plurality of guide ribs includes an inclination angle between the bottom ledge surface and the top cover flange, wherein the angle at the bottom ledge surface is smaller than the angle at the top cover flange.

[0019] In some embodiments, the tilt angle is 1.5° or less.

[0020] In some embodiments, the at least one nesting member further includes at least one finger opening formed therein.

[0021] In some embodiments, a flange is included that extends at least partially around each finger opening and from the bottom surface of the at least one nesting member.

[0022] In some embodiments, the plurality of containers include a plurality of truncated conical containers sized to hold a plunger stop therein.

[0023] In some embodiments, the at least one nested element includes a plurality of nested elements.

[0024] In some embodiments, the plurality of nested members are configured to be stacked in layers within the box, and the lowest nested member is configured to be positioned adjacent to the bottom ledge surface of the box.

[0025] In some embodiments, the housing includes two long side surfaces and two short side surfaces, wherein each of the two long side surfaces includes two guide ribs positioned on the long side surface, and each of the two short side surfaces includes one guide rib positioned on the short side surface.

[0026] In some embodiments, the at least one nesting member includes two long sides and two short sides, wherein each of the two long sides includes two deflectable clamps, and each of the two short sides includes one deflectable clamp.

[0027] Further details and advantages of this disclosure will be understood from the following detailed description, which is taken in conjunction with the accompanying drawings. Attached Figure Description

[0028] Figure 1 This is a top perspective view of a nesting member and housing assembly for storing a plunger stop, according to one aspect of this disclosure;

[0029] Figure 2A It is used for Figure 1 A top-view perspective view of the box in the nested components and box assembly;

[0030] Figure 2B yes Figure 2A A three-dimensional view of the box from below;

[0031] Figure 3A It is used for Figure 1 Top perspective view of the nested components and the nested components in the box assembly;

[0032] Figure 3B yes Figure 3A A bottom-view perspective of the nested components;

[0033] Figure 4 yes Figure 1 Top plan view of the nested components and box assembly; and

[0034] Figure 5 yes Figure 1 A sectional perspective view of the nested components and box assembly. Detailed Implementation

[0035] The following description is provided to enable those skilled in the art to make and use the aspects contemplated for carrying out the invention. However, various modifications, equivalents, variations, and substitutions will be apparent to those skilled in the art. Any and all such modifications, variations, equivalents, and substitutions are intended to fall within the spirit and scope of the invention.

[0036] In the following text, for descriptive purposes, the terms “upper,” “lower,” “right,” “left,” “vertical,” “horizontal,” “top,” “bottom,” “lateral,” “longitudinal,” and their derivatives shall be used in connection with the present invention as oriented as shown in the accompanying drawings. However, it should be understood that the invention may take various alternative variations unless explicitly stated otherwise. It should also be understood that the specific devices shown in the accompanying drawings and described in the following specification are merely exemplary aspects of the invention. Therefore, specific dimensions and other physical characteristics relating to the aspects disclosed herein should not be considered limiting.

[0037] refer to Figure 1 , Figure 1 A nesting element and housing arrangement 10 according to one aspect of the present disclosure is shown. In the nesting element and housing arrangement 10, a plurality of nesting elements 14 are removably held within a housing 12, wherein each nesting element 14 is configured to hold, for example, a plurality of plunger stops (not shown). For example, the housing 12 may be configured to hold two to ten nesting elements 14, which are vertically stacked relative to each other. As described above, various automated filling machines utilize other nesting element and housing arrangements to store and retrieve medical device components (e.g., syringe barrels). Figure 1 As shown, the nesting element and housing assembly 10 is specifically configured to receive the plunger stop in a manner that provides the desired positioning and alignment of each nesting element 14 for precise handling by the robotic components of the automated filling machine. However, it should be understood that this disclosure is not limited to use with plunger stops, as the nesting element and housing assembly described herein can be used with other elements and / or devices.

[0038] Still referencing Figure 1 and reference Figure 2A and Figure 2B , Figure 1 , Figure 2A and Figure 2B A box body 12 according to one aspect of this disclosure is shown. The box body 12 includes a pair of long side surfaces 16 and a pair of short side surfaces 17. However, in alternative embodiments, it should be understood that these sides of the box body 12 are not necessarily of different lengths and / or parallel, but may, for example, be of equal length, not parallel, etc. The general dimensions of the box body 12 (i.e., length, width, and height) can be adjusted based on the specific automated filling machine used.

[0039] The box 12 also includes a bottom portion 18 and a top portion 19. The bottom portion 18 is embedded into the top portion 19, wherein the dimensions of the bottom portion 18 are designed to be smaller than the dimensions of the top portion 19, while the top portion 19 is defined by a top lid flange 20 and a bottom ledge surface 23. This configuration allows multiple boxes 12 to be stacked together during storage, transportation, etc., but allows sufficient spacing between the respective top lid flanges 20 of the stacked boxes 12 to facilitate easy access (and separation) of the boxes 12.

[0040] The housing 12 also includes a plurality of guide ribs 22 that extend along the respective side surfaces 16, 17 into the interior of the housing between the top cover flange 20 and the bottom shelf surface 23. Figure 2A and Figure 2B In the illustrated embodiment, each of the long side surfaces 16 includes two guide ribs 22, while the short side surface 17 includes only one guide rib 22, wherein the guide ribs 22 on the two opposing short side surfaces 17 are laterally offset from each other. However, it should be understood that more or fewer guide ribs 22 may be used on the respective side surfaces 16, 17. For example, in alternative embodiments of this disclosure, the short side surface 17 may also include two guide ribs 22, and the long side surface 16 may include three guide ribs 22, etc.

[0041] Each guide rib 22 includes an inwardly facing friction surface 25 extending from the top cover flange 20 toward the bottom ledge surface 23. As will be described in more detail herein, each friction surface 25 is configured to provide an interface for a corresponding feature on the nesting member 14 to reliably align the plurality of nesting members 14 within the housing 12 and removably retain the nesting members within the housing. In some embodiments, the draft angle (i.e., the angle of inclination of the friction surface 25 between the bottom ledge surface 23 and the top cover flange 20) of each friction surface 25 of the guide rib 22 is relatively small, wherein the dimension at the bottom ledge surface 23 is smaller than that at the top cover flange 20. For example, even if the draft angles of the respective side surfaces 16, 17 are greater than 1.5°, the draft angle of the friction surface 25 may be less than 1.5°. In this way, the frictional engagement between the nesting pieces 14 positioned closer to the bottom of the housing 12 and the friction surface 25 of the guide rib 22 can be increased compared to those nesting pieces 14 positioned closer to the top cover flange 20 of the housing 12. Furthermore, in some embodiments, the nesting pieces 14 positioned near or near the upper portion of the top cover flange 20 of the housing 12 may not contact the guide rib 22. Therefore, while the nesting pieces 14 positioned at or near the upper portion can assist in aligning the nesting pieces 14 closer to the center portion of the housing 12 during movement of the housing 12, the nesting pieces 14 located at or near the upper portion are not necessarily physically held within the housing 12 by contact with the guide rib 22.

[0042] The box body 12 can be formed from any suitable material and by any suitable method. For example, the box body 12 can be formed from, for example, plastic, polymer (e.g., polystyrene), metal, etc., and can be formed by, for example, molding (e.g., injection molding), thermoforming, stamping, extrusion, welding, etc. Furthermore, the box body 12 can be formed as a single piece or as multiple pieces coupled together. If formed from multiple pieces, the material forming each piece can be the same or different.

[0043] Next, refer to Figure 3A and Figure 3B , Figure 3A and Figure 3B A nesting member 14 according to one aspect of this disclosure is shown. As described above, the nesting member 14 is configured to hold a plurality of plunger stops, but it should be understood that the nesting member 14 may be configured to hold other components.

[0044] Specifically, each nesting member 14 includes a plurality of receptacle containers 24 formed therein. The receptacle containers 24 may be formed as substantially truncated conical "chimneys," each chimney capable of holding a plunger receptacle therein for the access and removal of components of the automatic filling machine. Figure 3A As shown, each stop container 24 includes an opening formed in the top surface 35 of the nest 14, while as Figure 3B As shown, the "chimney" of the stop container 24 extends below the bottom surface 36. The diameter and dimensions of each stop container 24 can vary based on the type of stop used during a specific filling operation. Therefore, it should be understood that, with Figure 3A and Figure 3B The total number and position of the stop container 24 can also vary compared to the total number and position of the stop container shown.

[0045] Similar to the box 12 described above, each nesting member 14 includes a pair of long sides 28 and a pair of short sides 29. However, in alternative embodiments, it should be understood that these sides of the nesting member 14 are not necessarily of different lengths and / or parallel, but may, for example, be of equal length, not parallel, etc. Also similar to the box 12, the general dimensions (i.e., length, width, and height) of each nesting member 14 can be adjusted based on the specific automated filling machine used.

[0046] like Figure 3A and Figure 3B As shown, each of the short sides 29 may include a finger opening 26 formed thereon, wherein each finger opening 26 is designed to facilitate the manual loading (and / or unloading) of the nest 14 into (or from) the housing 12. In some embodiments, a flange 27 may at least partially surround each finger opening 26 and extend from the bottom surface 36 of the nest 14, thereby providing a larger surface area for the user to hold the nest 14. Although in Figure 3A and Figure 3B The two finger openings 26 are shown located on the opposing short sides 29, but it should be understood that the nesting member 14 may include more or fewer finger openings located on the short sides 29 or the long sides 28. Furthermore, in some embodiments, the finger openings 26 may be omitted entirely.

[0047] Still referencing Figure 3A and Figure 3BThe nesting member 14 also includes a plurality of deflectable clamps 30. As will be further described herein, each clamp 30 is positioned on the nesting member 14 substantially in accordance with the position of a corresponding guide rib 22 of the housing 12. In this way, the deflectable clamps 30 provide a friction interface between the nesting member 14 and the housing 12, which allows for consistent alignment (and self-centering) of the nesting member 14 within the housing 12, while still enabling smooth removal of the nesting member 14 from the housing 12 during filling operations.

[0048] Each clamping member 30 is formed within a notch 33 on each side of the nesting member 14. The proximal end of the clamping member 30 is coupled to the nesting member 14, while the distal end is free, allowing the clamping member 30 to deflect inwardly and at an angle relative to the nesting member 14 about its proximal end. A groove 34 is formed between the clamping member 30 and the sidewall of the notch 33, allowing the clamping member 30 to deflect inwardly. At the distal end of the clamping member 30, a head portion 32 is provided, which is slightly larger than the rest of the clamping member 30. As will be described below, the head portion 32 is configured to provide an interface surface for frictional engagement with the friction surface 25 of each guide rib 22 of the housing 12.

[0049] exist Figure 3A and Figure 3B In the illustrated embodiment, the long side 28 of the nesting member 14 includes two clamping members 30, while the short side 29 includes only one clamping member 30, wherein the clamping members 30 on the two opposite short sides 29 are laterally offset from each other. However, it should be understood that more or fewer clamping members 30 may be used on the respective sides 28, 29. For example, in alternative embodiments of this disclosure, the short side 29 may also include two clamping members 30, and the long side 28 may include three clamping members 30, etc. Regardless of the total number of clamping members 30 provided, it is preferred that the clamping members 30 of the nesting member 14 correspond in both placement and number to the guide ribs 22 of the housing 12 to ensure proper alignment.

[0050] Each nesting member 14 can be formed from any suitable material and by any suitable method. For example, the nesting member 14 can be formed from, for example, plastic, polymer (e.g., polystyrene), metal, etc., and can be formed by, for example, molding (e.g., injection molding), thermoforming, stamping, extrusion, welding, etc. Furthermore, the nesting member 14 can be formed as a single part or as multiple parts coupled together. If formed from multiple parts, the material forming each part can be the same or different.

[0051] refer to Figure 4According to one aspect of this disclosure, the nesting member 14 is shown positioned within the housing 12. As described above, the head portion 32 of each clamping member 30 is configured to contact the friction surface 25 of the corresponding guide rib 22, providing multiple friction interfaces between the nesting member 14 and the housing 12. When the nesting member 14 is pressed into the housing 12, each clamping member 30 is configured to deflect inward, thereby maintaining a deflection force between the head portion 32 and the friction surface 25, which serves to center the nesting member 14 and hold it within the housing 12. The deflection force of the clamping members 30 is large enough to hold the nesting member 14 in an aligned, centered position, but not so large that the friction between the head portion 32 and the friction surface 25 increases to the point of preventing the nesting member 14 from being smoothly removed from the housing 12. For example, in one embodiment, the maximum overall deflection force of all clamping members 30 may be about 2.6 N, which corresponds to a maximum value of about 0.4 N per clamping member when six clamping members are used on the nesting member 14. However, it should be understood that the nesting and housing arrangements according to various aspects of this disclosure are not limited thereto, and the overall deflection force (and the deflection force of each clamping element) may be less than or greater than the examples provided above.

[0052] As described above, multiple nesting pieces 14 can be stored within the housing 12, wherein these nesting pieces are stacked atop one another between the bottom ledge surface 23 and the top cover flange 20 of the housing 12. Although the friction surface 25 may have a slight draft angle (e.g., 1° or less), the construction of the clamping piece 30 compensates for the natural undercut of the guide rib 22, allowing each nesting piece 14 to be centered and secured within the top portion 19 of the housing 12, regardless of its position within the stack. That is, due to the draft angle of the guide rib 22, the clamping piece 30 of the lowermost nesting piece 14 in the stack can be deflected inward by a greater amount than the clamping piece 30 of the uppermost nesting piece 14. For example, the clamping member 30 of the bottommost nested member 14 can deflect about 1 mm, while the clamping member 30 of the topmost nested member 14 can only deflect about 0.5 mm, with the clamping members 30 of the nested members 14 positioned between these amounts deflecting. This variation in deflection allows the nested members 14 to remain aligned and secured within the housing 12, regardless of their stacking position.

[0053] Now for reference Figure 5 , Figure 5 A cross-sectional view of the nesting member and housing assembly 10 according to one aspect of this disclosure is shown. Figure 5In the illustrated embodiment, seven nesting pieces 14 are shown stacked within the housing 12. The lowermost nesting piece 14 is positioned adjacent to the bottom ledge surface 23 of the housing 12 and may rest at least partially on the bottom ledge surface 23, while the uppermost nesting piece 14 is positioned slightly below the top cover flange 20, with each stop container 24 vertically aligned (if applicable) with the stop containers 24 above and below it. Although Figure 5 The embodiments shown depict seven nested pieces 14, but it should be understood that in other embodiments, more or fewer nested pieces may be kept within the box.

[0054] In relation to Figures 1 to 5 In the case of the nesting and housing assembly 10 shown and described, multiple plunger stops can be held in multiple nesting pieces 14, wherein each nesting piece 14 is removably held within the housing 12. In this way, the nesting and housing assembly 10 can be used by various automated filling machines that require precise alignment, minimal "playback" between the components and their storage devices, and readily available access to the syringe components (including the plunger stops).

[0055] While several embodiments of the nesting element and housing assembly are illustrated in the accompanying drawings and described in detail above, other embodiments will be apparent to those skilled in the art and readily made therefrom without departing from the scope and spirit of the invention. For example, it should be understood that this disclosure contemplates that one or more features of any embodiment may be combined with one or more features of any other embodiment to the extent possible. Therefore, the above description is intended to be illustrative and not restrictive.

Claims

1. A nesting element and housing device (10) for storing medical device components, the nesting element and housing device comprising: Box body (12), the box body comprising: Four side surfaces (16, 17); and A plurality of guide ribs (22) extending vertically along the side surfaces (16, 17), wherein the plurality of guide ribs (22) are inwardly oriented and include a friction surface (25) extending vertically on the plurality of guide ribs; and At least one nested element (14), said at least one nested element comprising: Top surface (35); Bottom surface (36); Multiple containers (24), the multiple containers being used to store multiple medical device components; and Multiple deflectable clamping elements (30) are positioned on the edges (28, 29) of the at least one nested member. Its features are, The position of each of the plurality of deflectable clamps (30) of the at least one nesting member (14) corresponds to the position of a corresponding guide rib among the plurality of guide ribs (22) of the housing (12), and A portion of each of the plurality of deflectable clamps (30) is configured to contact a corresponding friction surface (25) of a corresponding guide rib (22) of the plurality of guide ribs (22) to cause each of the plurality of deflectable clamps (30) to be laterally deflected inward to align and secure the at least one nesting member (14) in the housing (12) within the housing.

2. The nesting component and box assembly (10) according to claim 1, wherein, Each of the plurality of deflectable clamps (30) includes a head portion (32) located at the distal end of the deflectable clamp, wherein the head portion (32) is configured to contact the friction surface (25) of a corresponding one of the plurality of guide ribs (22) when the at least one nesting member (14) is positioned within the housing (12).

3. The nesting member and box assembly (10) according to claim 1 or 2, wherein, The proximal end of each of the plurality of deflectable clamps (30) is coupled to the at least one nesting member (14) such that each of the plurality of deflectable clamps (30) can deflect inward about the proximal end of the deflectable clamp.

4. The nesting member and housing device (10) according to claim 1 or 2, wherein, Each of the plurality of deflectable clamps (30) is positioned within a notch (33) of the at least one nesting member (14).

5. The nesting member and housing device (10) according to claim 1 or 2, wherein, The box body (12) includes a top portion (19) and a bottom portion (18), the bottom portion (18) being designed to be smaller than the top portion (19).

6. The nesting member and box assembly (10) according to claim 5, wherein, The top portion (19) is defined by a bottom ledge surface (23) and a top cover flange (20), wherein the plurality of guide ribs (22) extend between the bottom ledge surface (23) and the top cover flange (20).

7. The nesting member and box assembly (10) according to claim 6, wherein, The friction surface (25) of each of the plurality of guide ribs (22) includes an inclination angle between the bottom ledge surface (23) and the top cover flange (20), wherein the angle at the bottom ledge surface (23) is smaller than the angle at the top cover flange (20).

8. The nesting member and box assembly (10) according to claim 7, wherein, The tilt angle is 1.5° or less.

9. The nesting member and housing device (10) according to claim 1 or 2, wherein, The at least one nesting member (14) further includes at least one finger opening (26) formed in the at least one nesting member.

10. The nesting and housing device (10) according to claim 9, the nesting and housing device further comprising a flange (27) extending at least partially around each finger opening (26) and extending from the bottom surface (36) of the at least one nesting (14).

11. The nesting member and housing device (10) according to claim 1 or 2, wherein, The plurality of containers (24) include a plurality of truncated conical containers, the plurality of truncated conical containers being sized to hold the plunger stop within the plurality of truncated conical containers.

12. The nesting member and housing device (10) according to claim 1 or 2, wherein, The at least one nested element (14) includes multiple nested elements (14).

13. The nesting member and housing device (10) according to claim 12, wherein, The plurality of nesting pieces (14) are configured to be stackable within the housing (12), and further wherein the lowermost of the plurality of nesting pieces (14) is configured to be positioned adjacent to the bottom ledge surface (23) of the housing (12).

14. The nesting member and housing device (10) according to claim 1 or 2, wherein, The box body (12) includes two long side surfaces (16) and two short side surfaces (17), wherein each of the two long side surfaces (16) includes two guide ribs (22) positioned on the long side surface, and each of the two short side surfaces (17) includes one guide rib (22) positioned on the short side surface.

15. The nesting member and housing device (10) according to claim 14, wherein, The sides (28, 29) include two long sides (28) and two short sides (29), wherein each of the two long sides (28) includes two deflectable clamps (30), and each of the two short sides (29) includes one deflectable clamp (30).

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